Waste water treatment tank apparatus



FIG. 1 is a top front perspective view of a design for a waste water treatment tank apparatus.

FIG. 2 is a front view of the design for a waste water treatment tank apparatus.

FIG. 3 is a right side view of the design for a waste water treatment tank apparatus.

FIG. 4 is a back view of the design for a waste water treatment tank apparatus.

FIG. 5 is a top view of the design for a waste water treatment tank apparatus without showing the specifics.

FIG. 6 is a left side view of the design for a waste water treatment tank apparatus; and,

FIG. 7 is a bottom view of the design for a waste water treatment tank apparatus. 

The ornamental design for a waste water treatment tank apparatus, as shown and described. 